PowerFilter

ControlIt PowerFilters help preserve and protect the DCC signal and voltage levels on model train layouts.

ControlIt PowerFilters.

ControlIt PowerFilters (also known as DCC snubbers or DCC terminators) are designed for use on layouts of any size and scale with systems that conform to the NMRA DCC specifications and standards. PowerFilters maintain the integrity of the DCC signal along the length of a DCC power bus by filtering out unwanted frequencies, noise and voltage spikes.

ControlIt PowerFilters are suitable for all layouts and are highly recommended for DCC power bus lengths longer than 10 metres (30 feet) or where DCC systems of 6 Amps or higher current are used.

ControlIt PowerFilters can especially assist if you have experienced:

Intermittent loss of control or lack of immediate response when operating locomotives
Locomotive runaways
DCC decoders losing their programmed configuration
DCC decoders being destroyed

PowerFilters are easy to install with 3mm (1/8") mounting holes and four screw terminals for wiring - two for each rail. The terminals accomodate wire from 0.4mm (26AWG) to 2mm (12AWG) diameter. See the diagrams below for suitable wiring installations.

Pricing

Item Code	Contents	Price	Status
DCC-PF	1 PowerFilter	AUD $9.50	In Stock

Shipping

AUD $8.00 each to anywhere in Australia
Other countries: calculated at the time of invoicing
Postage will be combined wherever possible

Payment

Orders in Australian Dollars (AUD): Direct Deposit is preferred
Details are provided at the time of invoicing
Orders outside of Australia: PayPal is the preferred payment method

Contact ControlIt for Orders and Enquiries

Installation Recommendations

Start with installing a PowerFilter at the end of a DCC power bus furthest away from the command station or booster
If issues are still being experienced in certain areas of the layout, additional PowerFilters can be added at those areas along the power bus
For layouts fitted with current sensing train detectors, any PowerFilters must be installed before the detectors (ie: not between the detector and the track)

PowerFilter Installation Diagrams

PowerFilter installed at the end of a DCC Power Bus

PowerFilter installed at the end of a DCC Power Bus with current sensing detectors

PowerFilters installed at each end of a DCC Power Bus

PowerFilters installed along and at the end of a DCC Power Bus. This installation method is suitable where the Bus current is 10 Amps or less.

Alternate method of PowerFilters installed along and at the end of a DCC Power Bus. This installation method is required where the Bus current is greater than 10 Amps.